Earthquakes!
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Transcript of Earthquakes!
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Page 10 More pg.10 Page 11 More pg.11 My Fault
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Final Jeopardy
The Cascades
What is the name of the mountain range that lies on the western edge of the North American
continent?
What is the pressure at a depth of 3500 km below the surface of the earth?
(GIVE UNITS!)
About 2 million atmospheres
A seismic station is 4000 km from the epicenter of an earthquake. How long after P waves arrive will the S waves arrive at the
same station?
5 minutes 40 seconds
It takes P waves 11 minutes and 20 seconds to travel from the epicenter of an earthquake to a seismic station. How long
will it take S waves from the same earthquake to reach that seismic station?
20 minutes and 40 seconds
S waves from an earthquake arrive at a seismic station at 2:15:20 PM. If the
seismic station is located 2000 km from the epicenter, at what time did the
earthquake occur?
2:08:00 PM
What is the difference in arrival time between P and S
waves at a distance of 2600 km from an epicenter?
4 minutes
As the distance from an epicenter increases, the
difference in arrival time between P & S waves ...........
Increases
An earthquake occurs at 3:30:00 AM. At what time will S waves arrive at a seismic
station located 6500 km from the epicenter of the quake?
3:48:00 AM
The difference in arrival times between P and S waves is 5 minutes and 20 seconds. How far from the
epicenter is the seismic station located?
3600 km
The difference in arrival times between P & S waves is 7 minutes
and 20 seconds. If the P waves arrived at the station at 6:45:00 PM,
at what time did the earthquake occur?
6:36:00 PM
Why does zone 3 in the diagram
receive P waves
but no S waves?
S waves cannot travel through the liquid outer core